{"nhtsa_id":603207,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-02-08","date":"1999-01-01","document_id":"0142A","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM","mfr_system":null,"summary":"SOME VEHICLES HVAC UNITS MAY HAVE HEATING AND AIR CONDITIONING PERFORMANCE ISSUES AND/ OR INTERMITTENT OPERATION. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/603207","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T2000","year_from":1996,"year_to":1998,"match":"exact","vehicle_ids":["1996_kenworth_t2000","1997_kenworth_t2000","1998_kenworth_t2000"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}